He was in therapy during the post-2013 years and I would assume that he still has a therapist nowadays (even if he doesn't have regular sessions, but based on some stuff he's said in interviews during the past two years or so he certainly seems to be mindful to implement some approaches and techniques in his life that he probably learned in therapy). A psychologist would most likely not tell him to stop touring though, but rather work with him to combat whatever insecurities, anxieties, etc. he might have now due to the state of his voice and help him achieve his personal goals without burning himself out mentally.

Making records and playing shows is Jon's life work and he's clearly not ready to give half of that up yet (the man is also a workaholic who can't sit still and he's only JUST turned 60, so he isn't exactly at retirement age either yet), so if stopping now would just make him feel unhappy and unsatisfied a therapist would most likely tell him to keep going and give him the psychological guidance he might need to keep his mental health in good shape throughout it.